Coolant Leak from the firewall... not the heater core.

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suruat98

New Member

Nov 18, 2006

18

0

1

Aug 6, 2008

#1

• Aug 6, 2008

• #1

After I run my 89 a small amount of coolant will leak out from a hole under the heater core connections. I see it coming out and its about 9 inches or so below the heat core connection.

What would this be? Is it some type of over flow. I know I don't have to much coolant. It only leaks about 1/3 of a cup everytime.

Any ideas?

Thanks,

 

wythors

Get off my lawn!!!

Founding Member

May 17, 2000

2,277

35

69

C Addle

Aug 6, 2008

#2

• Aug 6, 2008

• #2

If it is coolant, then the heater core is leaking into the heater box and out the drain hole for the evaporator. If it is just clear water, it is condensation from the evaporator and is perfectly normal.

 

gt40_2003wes

I did sound a wee bit gay there.

Aug 14, 2005

461

2

48

ky

Aug 7, 2008

#3

• Aug 7, 2008

• #3

if its coolant bro then it has gotta be the heater core.

 

Maryland Stang

Active Member

Aug 21, 2002

1,656

30

39

Greenville, NC

Aug 7, 2008

#4

• Aug 7, 2008

• #4

There is more than one reason to fix that as quick as possible too. When coolant leaks at that spot it can drain down onto the bolts that hold the started in place. The starter bolts are steel, the bell housing is aluminum. Guess what happens next? The bolts literally weld themselves in place making the starter extemely difficult to remove. Been there, fought that. My starter bolts are now very well lathered up in anti-seize compound.

 

mustangmike6996

5 Year Member

Nov 10, 2005

483

6

29

clinton twp, MI

Aug 7, 2008

#5

• Aug 7, 2008

• #5

have you actually pressure tested it and verified that its not a pinhole in a heater hose line? if its a small mist then it could puddle up and form a drip....

or like mentioned before.. heater core leaking into the evap case..

 

purplestang90

New Member

Aug 4, 2008

44

0

0

Buchanan County, Virginia

Aug 7, 2008

#6

• Aug 7, 2008

• #6

You difanalty have a heater core problem done been there twice!! GOOD LUCK!!